kola/tests/kuberetes: optimistically bump timeout
kola/tests/kuberetes: optimistically bump timeout

Possibly, this is responsiple for a rktnetes flake.

marineam/mantle,glevand/coreos--mantle,dm0-/mantle,quantum/coreos-mantle,glevand/coreos--mantle,marineam/mantle,quantum/coreos-mantle,dm0-/mantle